| A grim and frost-bitten wasteland.
Cocytus is seven levels deep and contains the icy rune. It can be accessed via the Vestibule of Hell.
|A gateway to the freezing wastes of Cocytus. From the frost-bitten lands, a cold chill touches your soul.|
Cocytus is 7 levels deep and populated by several kinds of "ice"-themed monsters, of which ice fiends and powerful simulacra are the most dangerous if you lack proper cold resistance. You'll also meet several undead dragons and draconians, zombies, water elementals, and shard shrikes. All the while a mystical Hellish force will assault you as is usual for all Hell branches, causing multiple nasty effects.
As far as layout goes, Cocytus is fairly open with several streams and lakes of deep water.
Cocytus is one of the harder Hell branches, and you should not venture here until you've cleared almost everything else in the game, aside possibly from Zot:5, the Tomb, Pandemonium, and Ziggurats. rC+++ is strongly recommended, with rC++ being a strict minimum. Some means of restoring or sustaining abilities are quite welcome too, since the effects of Hell can cause severe stat draining, and it's wise to carry some potions of curing to prevent your body from rotting away, which may happen occasionally by the effects of Hell.
Having access to fire-based attacks (either from a flaming weapon, a wand of fire, or powerful Fire conjurations such as Fire Storm) will make your journey much smoother, as the vast majority of monsters in Cocytus are not resistant to fire, and in some cases, are even vulnerable to it. Holy wrath weapons are also very effective. See the Antaeus article for advice on defeating the branch's boss.
- Necromancy miscast: 16.66%
- Summoning miscast: 8.33%
- Conjurations miscast: 4.16%
- Charms miscast: 2.08%
- Hexes miscast: 2.08%
- Ice magic miscast: 22.22%
- Ice fiend: 14.15%
- Summon 1-5 Cocytus monsters: 9.88%
- Nothing happens: 19.75%
In ancient mythology, Cocytus was one of the rivers in Hades, with the most famous one being the Styx. In Dante Alighieri's Divine Comedy, Cocytus is the ninth and final circle of Hell, where traitors are imprisoned in its frozen waters along with Satan.
During the Christmas holiday, online Crawl servers rename Cocytus to the North Pole:
| This gateway leads to the North Pole.
The North Pole is a festive place, home to all the world's good cheer.
The North Pole is seven levels deep and contains the icy rune. It can be accessed via the Vestibule of Hell.
This has no effect on gameplay, and is just plain silly.
Cocytus got a new layout in 0.12